What if I do not know the shaft type?

Send a photo of the shaft. A person can usually tell round, D shaft, hex, or splined from a clear picture.

Can you match the exact color?

We match as closely as our color options allow, but an exact factory match is not something we can promise.

What if nothing matches what I describe?

We tell you plainly. A simple knob or clip can often still be planned from your own measurements.

Do you charge just to look for a match?

No. Telling us what broke and getting an answer back does not cost anything.

Get a new knob or clip made to match

A knob cracked, or a small clip snapped off. Tell us the shaft type and size, and what the part attaches to. We look for a match or plan one from your numbers.

Set your sizes

The knob and clip builder is not live yet. Send us what broke and a person looks for a match or plans a replacement.

Find a solution Upload your file

What we can make

Matching a broken knob or clip
Tell us what broke, what it is from, and any sizes you have.
Read the guide
Measuring a small part like a knob
A ruler and a few careful numbers are enough to start.
Read the guide

How it works

1Tell us the sizes listed above.
2Send your numbers to the Solution Counter.
3A person looks at what you sent and plans the part.
4You see a price before anything is printed.

What we need from you

The shaft type: round, a flat sided D shaft, hex, or splined
The shaft diameter, and the knob diameter and height you want
How the knob attaches: a set screw, or a push fit
A photo of the spot, if one helps explain it

Materials

Most knobs and clips use PLA, a sturdy everyday plastic. A part near heat or that gets bumped around can use PETG instead.

See the full materials page

Measurements and fit

Measure the shaft diameter across the middle, not around the outside edge.
If the shaft has a flat side, measure the width of that flat too.
Measure the knob diameter and height you want, in millimeters.
We make it to the sizes you give us.

Common questions

What if I do not know the shaft type?: Send a photo of the shaft. A person can usually tell round, D shaft, hex, or splined from a clear picture.
Can you match the exact color?: We match as closely as our color options allow, but an exact factory match is not something we can promise.
What if nothing matches what I describe?: We tell you plainly. A simple knob or clip can often still be planned from your own measurements.
Do you charge just to look for a match?: No. Telling us what broke and getting an answer back does not cost anything.